18-6005 - Zinc 875805-4

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Sierra Marine

➂ 18-6005 ANODE

Replaces: 875805-4 AQ250, 270, 270T, 275

➀ Aluminum ➁ Magnesium ➂ Zinc

Zinc is for saltwater only applications.
Magnesium is for fresh water only applications.
Aluminum is for brackish water, or if boat is used in both fresh and salt environments.

Warranty (PDF)
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Sierra Marine Zinc Anode is equivalent to parts:

Sierra Marine is the market leader for aftermarket marine engine parts. Sierra products cover every major engine brand. Sierra offers a comprehensive product line and an unsurpassed customer satisfaction warranty covering parts and labor.